Epson Stylus COLOR 800 Service Manual page 160

EPSON Stylus &2/25 800
Table 5-8. Repair of the C202 MAIN Board Component (2)
Symptom Description
CR does not CR does not
operate properly. operate properly.
Paper is not fed PF motor does
properly. not operate
properly.
5-14
Cause
IC13 or IC2
Check that the driving waveform
is defective.
for each phase output from the
IC13 is as shown below. The
figure below represents the
waveforms for the phase A and
phase -A.
IC1 or IC2 is
Check that the CR motor phase
defective.
changeover waveform output
from the IC2 to the IC13 is as
shown below.
IC16 or IC2
Check that the drive waveform
is defective.
for each phase output from the
IC16 is as shown below. The
figure below represents the
waveforms for the phase A and
phase -A.
Check points Solution
Replace the
IC13.
Replace the
MAIN board.
Replace the
IC16.
Rev. A